Command 'selenium test' not available in Spring Roo

when I try to run the command

roo> selenium test --controller ~.web.TimerController

I get the following error:

Command 'se开发者_StackOverflow中文版lenium test --controller ~.web.TimerController' was found but is not
currently available (type 'help' then ENTER to learn about this command)

Does anyone know why this happens?

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It appears you first have to run "web mvc controller" then the selenium test is available. This is true for version 1.2.3-RELEASE. I'm unsure on the previous versions.